Quality control

There have been problems with unstable lamps as well as variable daylight leakage in through the hatches that make quality control tests such as linearity tests and shutter tests difficult. A new remote control unit installed in September was tested in December and January and found to be sufficiently stable (only stable to within 0.2% after an initial ramp-up). Also, it was found that the telescope needs to be lowered to an altitude of 45 degrees to avoid day-light leakage through the hatches. The location of the lamp (behind the telescope) is perfect in the sense that it gives a rather diffuse light distribution. A new light level adjustment knob with a fine-graded scale has recently been installed and needs to be tested.

The NOTCam quality control software has been ported to IDL and integrated into the post processing system. Final tests are being carried out before it is released.